That seems incredibly unlikely, since the cost of litigation for a small company against a company like Apple is huge. It's going to distract engineers, it's going to damage the company's reputation, it's going to slow progress as they try to meticulously explain where their IP came from and it's going to cost millions in legal fees most likely if it actually gets to court. And all that's before we even consider whether they're likely win - which they're not, because Apple has much more resources at their disposal.